A vulnerability identified in the Tailscale Windows client allows a malicious website to reconfigure the Tailscale daemon `tailscaled`, which can then be used to remotely execute code. In the Tailscale Windows client, the local API was bound to a local TCP socket, and communicated with the Windows client GUI in cleartext with no Host header verification. This allowed an attacker-controlled website visited by the node to rebind DNS to an attacker-controlled DNS server, and then make local API requests in the client, including changing the coordination server to an attacker-controlled coordination server. An attacker-controlled coordination server can send malicious URL responses to the client, including pushing executables or installing an SMB share. These allow the attacker to remotely execute code on the node. All Windows clients prior to version v.1.32.3 are affected. If you are running Tailscale on Windows, upgrade to v1.32.3 or later to remediate the issue.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A vulnerability identified in the Tailscale Windows client allows a malicious website to reconfigure the
    Tailscale daemon `tailscaled`, which can then be used to remotely execute code. In the Tailscale Windows
    client, the local API was bound to a local TCP socket, and communicated with the Windows client GUI in
    cleartext with no Host header verification. This allowed an attacker-controlled website visited by the
    node to rebind DNS to an attacker-controlled DNS server, and then make local API requests in the client,
    including changing the coordination server to an attacker-controlled coordination server. An attacker-
    controlled coordination server can send malicious URL responses to the client, including pushing
    executables or installing an SMB share. These allow the attacker to remotely execute code on the node. All
    Windows clients prior to version v.1.32.3 are affected. If you are running Tailscale on Windows, upgrade
    to v1.32.3 or later to remediate the issue. (CVE-2022-41924)

ID	Name	Product	Family	Severity
426114	Alpine: multiple tailscale packages: security update to 1.32.3-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	critical
426114	Alpine: multiple tailscale packages: security update to 1.32.3-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	critical
419500	SCA: security update for tailscale.com (GHSA-vqp6-rc3h-83cp)	Tenable Cloud Security	SCA Checks	critical
419500	SCA: security update for tailscale.com (GHSA-vqp6-rc3h-83cp)	Tenable Self-Hosted Container Security	SCA Checks	critical

Detections

Analytics

CVE-2022-41924

critical

Tenable Plugins

critical

critical

critical

critical